Aspect Ratio Calculator – Free Online Utility

Calculate aspect ratios and missing dimensions for images.

Original Dimensions

16:9

Calculate Proportions

Change either Width or Height above, and the other value will update automatically to maintain the original 16:9 aspect ratio.

Online Aspect Ratio Calculator for Images & Video

Maintaining the correct aspect ratio is essential for ensuring that your images and videos don't look stretched or distorted when resized. metatool.in's free Aspect Ratio Calculator is a simple yet powerful tool for web designers, photographers, and video editors. Easily find the perfect proportions for your content.

Whether you're resizing a 4K video for a 1080p display, or preparing social media assets with specific dimension requirements, our calculator provides instant results. Supports common presets like 16:9, 9:16, 4:3, and 1:1. Simply enter your original dimensions and then adjust one side of the new size to see the magic happen.

Frequently Asked Questions

An aspect ratio is the proportional relationship between the width and height of an image or screen. It is usually expressed as two numbers separated by a colon, like 16:9.
Enter your original width and height in the first set of boxes. Then, enter either a new width or a new height in the second set, and the missing dimension will be calculated automatically while maintaining the original proportions.

Related Free Tools

  • Image Resizer — Resize images to exact pixel dimensions securely in your browser.
  • Image Cropper — Crop images to perfect dimensions with custom aspect ratios.